// Copyright (c) 2017-2020 VMware, Inc. or its affiliates.  All rights reserved.
//
// This software, the RabbitMQ Java client library, is triple-licensed under the
// Mozilla Public License 2.0 ("MPL"), the GNU General Public License version 2
// ("GPL") and the Apache License version 2 ("ASL"). For the MPL, please see
// LICENSE-MPL-RabbitMQ. For the GPL, please see LICENSE-GPL2.  For the ASL,
// please see LICENSE-APACHE2.
//
// This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND,
// either express or implied. See the LICENSE file for specific language governing
// rights and limitations of this software.
//
// If you have any questions regarding licensing, please contact us at
// info@rabbitmq.com.

package com.rabbitmq.client;

/**
 * Implement this interface in order to be notified of failed
 * deliveries when basicPublish is called with "mandatory" or
 * "immediate" flags set.
 * Prefer this interface over {@link ReturnListener} for
 * a simpler, lambda-oriented syntax.
 * @see Channel#basicPublish
 * @see ReturnListener
 * @see Return
 */
@FunctionalInterface
public interface ReturnCallback {

    void handle(Return returnMessage);

}
